Of the following;
a-erosion
b-volcanic eruption
c-ocean circulation
d-climate
The answer is; B
A volcanic eruption is caused by the energy deep in the earth. The heat from the heats up the ricks into magma that ascends up into the crust through vents and erupts. The differential heating of the earth by the sun is significant in driving ocean circulations and climate too. The uneven heating of rocks causes the rocks to weather.